Classification
330 - Economics
389
340 - Law
351
320 - Political science
349
364 - Criminology
219
363 - Other social problems & services
116
900 - History & geography
99
300 - Social sciences
94
301 - Sociology & anthropology
64
306 - Culture & institutions
60
658 - General management
57
360 - Social problems & services; associations
50
610 - Medicine & health
49
005 - Computer programming, programs & data
46
820 - English & Old English literatures
40
004 - Data processing & computer science
38
304 - Factors affecting social behavior
38
006 - Special computer methods
36
333 - Economics of land & energy
31
370 - Education
29
380 - Commerce, communications & transportation
29
700 - The arts; fine & decorative arts
29
500 - Natural sciences & mathematics
28
150 - Psychology
25
331 - Labor economics
25
345 - Criminal law
23
600 - Technology
23
305 - Social groups
22
302 - Social interaction
21
338 - Production
21
614 - Incidence & prevention of disease
21
621 - Applied physics
21
303 - Social processes
20
341 - Law of nations
20
616 - Diseases
20
361 - Social problems & social welfare in general
19
140 - Specific philosophical schools
18
327 - International relations
18
355 - Military science
18
620 - Engineering & allied operations
17
100 - Philosophy & psychology
16
342 - Constitutional & administrative law
16
170 - Ethics
13
344 - Labor, social, education & cultural law
13
000 - Computer science, information & general works
12
384 - Communications; telecommunication
12
630 - Agriculture & related technologies
12
576 - Genetics & evolution
11
670 - Manufacturing
10
001 - Knowledge
9
307 - Communities
9
more ...